Remember the fixed up ZZ proposal webpage from a year ago?
Context for readers: link 1, link 2.
Well, it's still missing that line trainer Java applet.
As soon as you can get the step1Solver.jar file from either http://speedcubing.com.pl/applet/step1Solver.jar or http://rubiks-cube.c0.pl/inne/step1Solver.jar, it should be fairly easy to restore http://rubiks-cube.c0.pl/inne/eoline.html from 2012 containing that trainer applet. Getting the step1Solver.jar file would be the hard part though because it wasn´t archived by the Internet Archive crawler.